Installation and user guide for the Danfoss Heating103 electro-mechanical timeswitch, covering setup, wiring diagrams, and programming instructions.
This document serves as an installation and user guide for the Danfoss Heating103 electro-mechanical 24-hour timeswitch. It is designed to control hot water and heating systems, including factory replacement units (FRU). The manual emphasizes that installation should be performed by a qualified electrician or competent heating installer in accordance with current wiring regulations.
| Power supply | 230 Vac ± 15%, 50 Hz |
|---|---|
| Switching action | 1 x SPST, Type 1B |
| Max. Switch Rating | 264Vac, 50/60Hz, 6(2)A |
| Timing Accuracy | ±1 min./month |
| Enclosure Rating | IP20 |
| Max. Ambient Temperature | 55°C |
| Dimensions (W, H, D) | 112 x 135 x 69 mm |
This product should only be installed by a qualified electrician or competent heating installer.
Normally, it provides 2 ON periods and 2 OFF periods each day.
Red tappets (A and C) switch the system ON, while Blue tappets (B and D) switch it OFF.